Maxtor 10K III User Manual

5-82

Maxtor Atlas 10K III

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The Margin Control subpage (see Table 5-98) contains parameters that set and report 
margin control values for usage between the initiator/target pair on subsequent 
synchronous and paced transfers.

A MODE SELECT command will return the current settings for the initiator/target 
pair. Fields that are not implemented will be reported as zero.

Table 5-98   

The Driver Strength field indicates the relative amount of driver source currently used 
by the driver. The Driver Strength field affects both the strong and week drivers. A 
larger value indicates more driver source current.

The Driver Precompensation field indicates the relative difference between the weak 
driver and the strong driver amplitudes when precompensation is enabled. A larger 
value indicates a larger difference between the weak and strong amplitudes.

The Driver Asymmetry field indicates the relative difference between the amplitudes 
of asserted and negated signals launched from the driver. A larger value indicates a 
relatively stronger asserted signal compared to the negated signal.

The Driver Slew Rate field indicates the relative difference between the assertion and 
negation magnitudes divided by the rise or fall time. A larger value indicates a faster 
slew rate.

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5

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%

$

0

Reserved

1

Driver Strength

Reserved

2

Drive’s Asymmetry

Driver Precompensation

3

Drive’s Slew Rate

Reserved

4

Reserved

5

Reserved

6

Reserved

7

Vendor Specific

8

Reserved

9

Reserved

10

Reserved

11

Reserved

12

Reserved

13

Reserved

14

Reserved

15

Reserved